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4 Commits

Author SHA1 Message Date
Alex Zinenko 60f443bb3b [mlir] Change dialect namespace loop->scf 
All ops of the SCF dialect now use the `scf.` prefix instead of `loop.`. This
is a part of dialect renaming.

Differential Revision: https://reviews.llvm.org/D79844
 2020-05-13 19:20:21 +02:00
Tres Popp 90b7bbffdd [MLIR] Rename collapsePLoops -> collapseParallelLoops 
Summary:
Additionally, NFC code cleanups were done.

This is to address additional comments on
https://reviews.llvm.org/D76363

Differential Revision: https://reviews.llvm.org/D77052
 2020-04-01 10:15:13 +02:00
Mehdi Amini bab5bcf8fd Add a flag on the context to protect against creation of operations in unregistered dialects 
Differential Revision: https://reviews.llvm.org/D76903
 2020-03-30 19:37:31 +00:00
Tres Popp 27c201aa1d [MLIR] Add parallel loop collapsing. 
This allows conversion of a ParallelLoop from N induction variables to
some nuber of induction variables less than N.

The first intended use of this is for the GPUDialect to convert
ParallelLoops to iterate over 3 dimensions so they can be launched as
GPU Kernels.

To implement this:
- Normalize each iteration space of the ParallelLoop
- Use the same induction variable in a new ParallelLoop for multiple
  original iterations.
- Split the new induction variable back into the original set of values
  inside the body of the ParallelLoop.

Subscribers: mgorny, mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, aartbik, liufengdb, Joonsoo, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76363
 2020-03-26 09:32:52 +01:00